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The sensitivity menu has left and right arrows, plus a horizontal bar graph.
The graph gives a visual indication of the sensitivity level. The number to
the right of the bar graph shows the percentage of sensitivity in use.
To increase the sensitivity level, press the right arrow key. As you press
the key, the menu’s bar graph will grow wider and the percentage will
increase in value. You can also see the difference on the chart record as
it scrolls. When the sensitivity is at the desired level, release the key.
To decrease the sensitivity level, press the left arrow key. The bar graph
and percentage will decrease. When the sensitivity is at the desired level,
release the key. When you reach either the maximum or minimum limit,
a tone sounds.
To erase the menu, press the EXIT key.
RANGE - Automatic
When turned on for the first time, the
X-65 automatically places the bottom
signal in the lower half of the screen.
This is called Auto Ranging and is part
of the automatic function. Typically,
the range cannot be changed manu-
ally while the unit is in automatic, as
shown at right. However, depending
upon the bottom depth and the current
range, you can change the range to a
different depth. In the example screen
shown below, the bottom depth has
descended to a point where you can change the range to 150 feet. To do
this, simply press the right arrow key while the Auto Range menu is
displayed. When you're finished with
this menu, press the EXIT key to
erase it.
RANGE - Manual
The X-65 gives you complete control
over the range when it’s in the manual
mode.
To change the range, first make cer-
tain the X-65 is in the manual mode.
Next, press the MENU key and the up
or down arrow keys until the range